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==Contacts Vs Glasses== | ==Contacts Vs Glasses== | ||
''See also [[Lens#Glasses or Contacts]]'' | |||
Your prescription is specifically written for either contacts or glasses. [[Vertex Distance]] plays a role in effective lens strength, so the contacts which sit closer to your eye may be written as a weaker prescription than glasses. Vertex Distance is hard to measure, and contacts may act differently as the eye adapts to them, so if you have a strong lens your optometrist may need to do additional refraction tests with the contacts in and adjust your prescription slightly. | Your prescription is specifically written for either contacts or glasses. [[Vertex Distance]] plays a role in effective lens strength, so the contacts which sit closer to your eye may be written as a weaker prescription than glasses. Vertex Distance is hard to measure, and contacts may act differently as the eye adapts to them, so if you have a strong lens your optometrist may need to do additional refraction tests with the contacts in and adjust your prescription slightly. | ||